Nairobi: Britain's newly married Prince William and his wife, Kate Middleton, have left the island nation of the Seychelles after a 10-day honeymoon, officials said on Saturday.

"They left happy and clearly content with their stay," said the head of the Seychelles tourism board, Alain St Ange, who saw the couple left on Friday.

The island nation's Foreign Minister said the nation was proud to host the couple.

"The people of Seychelles are truly honoured that Prince William and his wife chose to return to Seychelles for this special holiday and we are proud to have been able to offer them a peaceful and private getaway," Jean-Paul Adam said in a statement released by the government.

The string of 115 islands in the Indian Ocean about 1,600 kilometres off the eastern coast of Kenya is known for its sandy beaches, clear waters and secluded hideaways.

The Seychelles coast guard helped ensure the couple's privacy as they stayed on North Island. On their last day the royal couple invited the coast guard ashore to personally thank them for their efforts.

The couple married last month before heading off to the island chain. The royal family and the Seychelles government had refused to disclose their location, saying the two were entitled to privacy on their honeymoon.